Recently I decided to check the effectiveness of KSP 0.23 memory management with various plugins installed. I compared vanilla KSP and KSP with Active Memory Reduction Mod 1.1 (Texture Compressor) on PC windows 7 64 bit. Memory usage was recorded one minute after the initialization of the main menu, during actual play memory usage will be higher. All values should be considered as estimated with an error of 10 Mb, individual values may vary, depending on the running applications and memory fragmentation. [table=width: 500] [tr] [td]RAM usage in Mbytes[/td] [td]Vanilla KSP[/td] [td]KSP + Memory Mod[/td] [/tr] [tr] [td]Baseline (no mods)[/td] [td]1464[/td] [td]1460[/td] [/tr] [tr] [td]KSP + Squad texture reduction pack 0.1c[/td] [td]1337[/td] [td]1182[/td] [/tr] [tr] [td]Kethane 0.8.2[/td] [td]98[/td] [td]100[/td] [/tr] [tr] [td]Interstellar 0.9[/td] [td]434[/td] [td]249[/td] [/tr] [tr] [td]SCANsat 5 + vibradyn 0.02c[/td] [td]137[/td] [td]76[/td] [/tr] [tr] [td]Universe replacer 4.0 + Rareden's Skybox HD[/td] [td]253[/td] [td]253[/td] [/tr] [tr] [td]KW Rocketry 2.5.52[/td] [td]324[/td] [td]325[/td] [/tr] [tr] [td]KW Rocketry + KW texture reduction pack 0.1a[/td] [td]170[/td] [td]165[/td] [/tr] [tr] [td]B9 Aerospace pack R4.0c[/td] [td]1308[/td] [td]375[/td] [/tr] [tr] [td]B9 Aerospace + Aerospace reduction pack 0.1a[/td] [td]1318[/td] [td]651[/td] [/tr] [tr] [td]B9 Aerospace + Reduced textures included with plugin[/td] [td]478[/td] [td]148[/td] [/tr] [/table] As you can see, despite all the changes in the KSP 0.23, plugins can take a lot of memory. In particular B9 Aerospace with original textures. The use of William Taylor's modified textures still can benefit, except for the B9 package, but included with the plugin work great. In my experience, as long as you keep the initial use of RAM under 3Gbytes, you should not expect CTDs associated with memory during the game, and if you want to use a lot of plugins Texture Compressor type add-on is still a necessity. I hope you find it useful, happy modding.